Composite materials based on Layered Double Hydroxides for Air Purification

Atmospheric nitrogen oxide (NOx) pollution represents a critical global challenge, especially in urban and industrial areas, requiring efficient and cost-effective removal solutions. The present master thesis study presents eco-friendly heterocomposites ZnAlNi layered double hydroxides (LDHs) functionalized by graphitic carbon nitride and gold/silver nanoparticles. The obtained heterojunctions induce an enhancement of UV-visible-light photocatalytic activity compared to pristine LDH, successfully converting nitrogen monoxide to nitrites/nitrates. These promising results demonstrate the system's potential for real-world air purification applications, offering significant benefits for environmental protection and human health.